Oracle 阻塞

确认存在被阻塞的会话 select * from dba_blockers; 确认哪个会话阻塞了其他会话 select l1.sid, ‘ IS BLOCKING ‘, l2.sid from v$lock l1, v$lock l2 where l1.block =1 and l2.request > 0 and l1.id1=l2.id1 and l1.id2=l2.id2 ---------------------------------------------- select s1.username || ‘@’ || s1.machine || ‘ ( SID=’ || s1.sid || ‘ )  is blocking ‘ || s2.username || ‘@’|| s2.machine || ‘ ( SID=’ || s2.sid || ‘ ) ‘ AS blocking_status from v$lock l1, v$session s1, v$lock l2, v$session s2 where s1.sid=l1.sid and s2.sid=l2.sid and l1.BLOCK=1 and l2.request > 0 and l1.id1 = l2.id1 and l2.id2 = l2.id2 ; —————————————————— ID2为对应的object id select * from v$lock ; select object_name from dba_objects where object_id=307193; 查找阻塞其他会话对应的行。 select do.object_name, row_wait_obj#, do.data_object_id, row_wait_file#, row_wait_block#, row_wait_row#, dbms_rowid.rowid_create ( 1, do.data_object_id, ROW_WAIT_FILE#, ROW_WAIT_BLOCK#, ROW_WAIT_ROW# ) from v$session s, dba_objects do where sid=252 and s.ROW_WAIT_OBJ# = do.OBJECT_ID ; select * from obj1 where rowid=’ AABK/5AAFAAAAHHAAA’ ; ———————————————————— 查找阻塞其他会话的会话正在执行的SQL select s.sid, q.sql_text from v$sqltext q, v$session s where q.address = s.sql_address and s.sid = 252; kill 会话 Select blocking_session, sid, serial#, wait_class,seconds_in_wait From v$session where blocking_session is not NULL order by blocking_session; alter system kill session 244,11049′ immediate;